Answer:
We are already given the length of the prism, so now we need to find the height and width.
4 units across is the width, and 2 units up is the height
In order to find the volume of a rectangular prism we must multiply the length, width, and height.
In this case, 4 is our width, 2 is our height, and 7 is obviously our length.
Now let's multiply;
4 x 2 x 7 = 56 cubic centimeters
to make this easier to multiply we could also do
(4 x 2) x 7 or 4 x (2 x 7)
Consider the function y=9-x^2 , where x>3 . What is the inverse of the function? What is the domain of the inverse? Show all of your work for full credit. (Hint: Swap and in the domain as well as the function.)
choose the sentence that complete the fact family 5×6=30 30÷6=5 6×5=30 which one is correct a 30÷5=6 b 30÷3 =10 c 6÷2=3 d 30÷15=2 is it abc or d
Answer:
a 30÷5=6
Step-by-step explanation:
Because from the fact the numbers that were used were 5,6and30.
they solved for 5×6=30,30÷6=5and6×5=30. which means it is left with 30÷5=6.
hope this helps.
Given the formula V=1/3 Ah, solve for h. * *Hint: click the pen button next to the answer box to make sure your answer is formatted correctly. Use parentheses if needed.
h=___________
from 56 people to 63 people
Answer:
uhh 7 people joined?
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
from 56 people to 63 people theres 7
56 - 63 is 7
If
you vertically stretch the exponential function f(x) = 2X by a factor of 4, what
is the equation of the new function?
O A. g(x) = 2 • 4*
O B. g(x) = 1.24
O c. g(x) = 4. 2x
O D. g(x) = 24%
Answer: 1
Step-by-step explanation:
but why is it fx then the rest r g?
HELPPP PLEASE PLEASE 15 points
Hi! I hope you're enjoying your day!
The first 4 terms of this arithmetic sequence are
132, 124, 116, 108.
What is the common difference? What do we need to subtract or add in order to get the next term?
Well, 132-124=8; 124-116=8; 116-108=8...
So the common difference is 8.
Let's identify the next two terms in this sequence.
Since we subtract 8 each time, the next term is
100
subtract 8 again:
92
Hence, the answers are:
[tex]\boxed{\boxed{\bold{100~and~92}}}[/tex]
Hope everything is clear.
If you have any questions, please comment.
#LearningIsFun
[tex]\rule{250}{2}[/tex]
Answer:
next 100 then 92
Step-by-step explanation:
132,124,116,108,100,92
Find angle C, please help me out.
Answer: 98 degrees
Step-by-step explanation:
The exterior angle theorem states that the measure of an exterior angle is equal to the sum of the measures of the two remote interior angles of the triangle.
Therefore: x + 3x+2 = 130
Combining like terms gives: 4x+2 = 130
Solving for x: x = 32
Substituting the value of x for the value of angle C: 3(32) +2
Simplifying: 98 degrees.
Find the maximum and minimum values of f(x,y) = 2+2x+4y-x^2-y^2 on the triangular region in the first quadrant bounded by the lines x=0, y0, y=9x.
I think your question seems like :-
Find the maximum and minimum values of f(x,y) = 2+2x+4y-x²-y² on the triangular region in the first quadrant bounded by the lines x = 0, y = 0, y = 9-x. The reason is below :
If you see carefully, the given lines were x = 0, y = 0, y = 9x , also these lines forms a Triangle in first quadrant (Given) , but these all lines doesn't form a triangle in 1st quadrant , we can't change the other two lines (As those two lines will work as permanent sides and support for the triangle) but third one can be , also neither 9 + x nor (9/x) can't form triangle in 1st quadrant with the given other two lines .Only with y = 9 - x the given situation can be achieved
But before starting the question let's recall some of the concepts :-
For a given function let it be f(x,y) ,
f(x,y) can have maximum or minimum if AC - B² > 0 , as per A < 0 and A > 0 , if A < 0 then maxima at critical points and if A > 0 , then minima at critical points f(x,y) have saddle points if AC - B² < 0 From AC - B² = 0 , nothing can be concludedWhere ,
[tex]{\boxed{\bf{A=\dfrac{\partial^{2}f}{\partial x^{2}}}}}[/tex] [tex]{\boxed{\bf{B=\dfrac{\partial^{2}f}{\partial x\partial y}}}}[/tex] [tex]{\boxed{\bf{C=\dfrac{\partial^{2}f}{\partial y^{2}}}}}[/tex]Now , consider the function ;
[tex]{:\implies \quad \sf f(x,y)=2+2x+4y-x^{2}-y^{2}}[/tex]
Partial Differentiating both sides w.r.t.x
[tex]{:\implies \quad \sf \dfrac{\partial f}{\partial x}=2-2x}[/tex]
Now , partial differentiating both sides w.r.t.y
[tex]{:\implies \quad \sf \dfrac{\partial^{2}f}{\partial x\partial y}=0}[/tex]
Now , consider ;
[tex]{:\implies \quad \sf \dfrac{\partial f}{\partial x}=2-2x}[/tex]
Partial differentiating both sides w.r.t.x
[tex]{:\implies \quad \sf \dfrac{\partial^{2}f}{\partial x^{2}}=-2}[/tex]
Now , consider ;
[tex]{:\implies \quad \sf f(x,y)=2+2x+4y-x^{2}-y^{2}}[/tex]
Partial differentiating both sides w.r.t.y
[tex]{:\implies \quad \sf \dfrac{\partial f}{\partial y}=4-2y}[/tex]
Now , partial differentiating both sides w.r.t.y
[tex]{:\implies \quad \sf \dfrac{\partial^{2}f}{\partial y^{2}}=-2}[/tex]
Now to find the critical points , first order partial derivative of f(x,y) both w.r.t.x and w.r.t.y must be 0. So , if you equate them to 0 , you will get x = 1 and y = 2. So critical point is only one i.e (1,2)
Now , from the above conditions , let calculate AC - B² first , from which we will get maxima or minima
[tex]{:\implies \quad \sf (-2)(-2)-(0)^{2}}[/tex]
[tex]{:\implies \quad \sf 4\> 0}[/tex]
So , AC - B² > 0 and also A < 0 , so maxima at (1,2) , to find maxima we need to put x = 1 , y = 2 in f(x,y) i.e f(1,2) = 2 + 2(1) + 4(2) - 1² - 2² = 7 . Now , for minima , draw the triangle see attachment 1 . Now , in the attachment critical points are (0,9) , (0,0) and (9,0) . Now , we need to find f(x,y) at these all points too . If you calculate then you will get f(0,9) = -43 , f(0,0) = 2 and f(9,0) = -61 , out of which -61 is minimum
So , the required maxima and minima are 7 and -61
Note :- Also , refer to the attachments no. 2,3,4 as well for why I choosed the third line to be 9 - x rather than others.
please help I will give brainiest
Answer:
7
Step-by-step explanation:
The letter for sausage or red sauce is S at the end and R in the middle.
Counting, there is 7 outcomes that have either S at the end or R in the middle.
Which quadratic function is represented by the graph?
y = 0.5(x + 2)2 + 4
y = 0.5(x + 3)2 – 0.5
y = 0.5(x – 3)2 – 0.5
y = 0.5(x – 2)2 + 4
Answer: C
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
Here (h, k) = (3, - 0.5), thus
y = a(x - 3)² - 0.5
To find a substitute either of the x- intercepts into the equation.
Using (4, 0), then
0 = a(4 - 3)² - 0.5 = a - 0.5 ( add 0.5 to both sides )
a = 0.5
y = 0.5(x - 3)² - 0.5 ← equation of quadratic function
Solve the inequality. Then graph the solutions on a number line. 20 > - 4(2x - 7)
Answer:
1
Step-by-step explanation:
Multiply -4 with 2x and -7
Then collect like terms
Divide both sides by the co-efficient of x
Hello can anyone help me with this please?
Answer:
The product of exponents is equal to the sum of the exponents.
Step-by-step explanation:
(x^2)*(x^2)=x^4, as it can be written as x*x*x*x, which is also x^4.
(x^3)(x^3)(x^3) does NOT equal x^27
(x^3)(x^3)(x^3) equals x^9
Answer this please please please please please
Answer:
4.5 cm
Step-by-step explanation:
Circunference = 2π*radius = 2*3.14*radius = 6.28*radius = 28.26
so radius = 28.26/6.28 = 4.5 cm
Abby needs to take a taxi to go to the movies, the taxi charges 4.00 flag fee for the pick up and then 2.75 for each mile driven, if the total charge of her taxi was 20.50 how far was Abby’s taxi ride to the movie?
Answer:
6 miles
Step-by-step explanation:
x = miles driven
4.00 + 2.75 * x = 20.50
2.75x = 20.50 - 4.00 = 16.50
so
x = 16.50/2.75 = 6 miles
please help for this zearn lesson if u can solve it please tell me the answer
Answer:
q = 6
Step-by-step explanation:
30/5 = 6
5(6)/5
30/5
6
Have an amazing day!!
PLEASE RATE AND MARK BRAINLIEST!!!
An airline charges nothing for a suitcase up to 20 pounds. For every pound over 20, the airline charges $2 per pound (only for pounds over 20). How much does the airline charge for a 35 pound suitcase?
Answer:
$30
Step-by-step explanation:
For a 35 pounds suitcase, the airline charges $0 for the first 20 pounds and $2 per pound for the remaining 15 pounds as the airline charges for only pounds over 20
what is 4/? - 2/5 = 2/5
Answer:
?=5
Step-by-step explanation:
4/5-2/5=2/5
First we must replace ? with x for an unknown value and then solve.
Large pies are $5.00 and small pies are $3.00. You buy 2 large pies and 4 small pies. How much did you
spend?
Answer:
$22
Step-by-step explanation:
2x5.00=$10 4x3.00=$12
10+12=22
Answer:
$22.00
Step-by-step explanation:
5 x 2 = 10
3 x 4 = 12
total = $22.00
Which lines are parallel? Why?
Answer:
Lines C and D
Lines A and B
Step-by-step explanation:
Parallel lines are two straight lines that never intersect with one another.
Lines C and D are parallel because they are straight and will never intersect
Lines A and B are parallel because they are straight and will never intersect
a factory producing fruit juice has three machines A,B and C. The machines produce 500,800 and 700 packets of juice per hour respectively. if two packets are randomly selected, what is the probability that one defective packet will be of A and another defective be of B
Answer:
it is half
r u show
omg workings
Which choice is equivalent to the expression below?
5x2-3,2 + x2
O A. 2x² √2
OB. 5x22
O C. 6x1/2 - 3/3
O D. 3x2
Answer:
C
Step-by-step explanation:
Explanation is on picture.
Hope that helps :)
Answer:
c
Step-by-step explanation:
you can only simplify this part
[tex]5x\sqrt{2} +x\sqrt{2} =6x\sqrt{2}[/tex]
so the rest would remain the same
you deposit 3000 in an account earning 7% interest compound monthly. how much will you have in the account in 10 years
andrea cycles 9 km on her bike in 2 hours. calculate her average speed in kilometers per hour.
Answer:
4.5km/h
Step-by-step explanation:
Here we know that she does 9 km per 2 hours. If we know how much she can travel in 2 hours it's very easy to find out how much she travels in 1. Because half of 2 hours is one hour. So we can simply half 9 km to find how much she travels in 1 hour:
9/2 = 4.5
4.5km/h
I hope this makes sense :)
Answer:
4.5 km per hour
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PLEASE SHOW WORK
a. How many half-gallon cartons of milk equal 1 gallon?
b. How many half-gallon cartons of milk equal 3 gallons?
Group of answer choices
a. 4, b. 12
a. 2, b. 6
a. 3, b. 9
please my last math problem .
√100 + 6! =
Question
√100 + 6!
Step-by-step explanation:
about roots and factorials
=√100
=10
square root how to do it:
(10 × 10 = 100)
looking for factorial
=6 × 5 × 4 × 3 × 2 × 1
=30 × 4 × 3 × 2 × 1
=120 × 3 × 2 × 1
=360 × 2 × 1
=720 × 1
=720
factorial result of 6! is 720
now we count 10 + 720
10
720
———+
730
so the result of √100 + 6! is 730
I hope this helps
Answer(s):
[tex]\displaystyle 710\:and\:730[/tex]
Explanation:
The square root of any number is negative AND positive first of all. Second, when dealing with factourials, you could either start with two and multiply all the way up to the coefficient, or vice versa. Anyhow, let us solve this now:
[tex]\displaystyle \sqrt{100} + 6! \\ \\ \boxed{710} = -10 + [2(3)(4)(5)(6)] \\ \boxed{730} = 10 + [2(3)(4)(5)(6)][/tex]
I am joyous to assist you at any time.
NO LINKS!! Part 8a: Please help me with this problem
THIS IS NOT MULTIPLE CHOICE!!!
a. Through what angle should the captain turn to head directly to Barbados?
b. Once the turn is made, how long will it be before the ship reaches Barbados if the same 15-knot speed is maintained?
Answer:
26.38° (nearest hundredth)
30.7960166... hours = 30 hours 47 mins 37 secs
Step-by-step explanation:
one knot = one nautical mile (nm) per hour
Therefore, 15-knot speed for 10 hours = 15 × 10 = 150 nm
Use cosine rule to find the distance between the ship and Barbados (blue dashed line on attached diagram).
Cosine rule: c² = a² + b² - 2ab cos(C)
Given:
a = 150b = 600C = 20°⇒ c² = 150² + 600² - 2(150)(600)cos(20°)
⇒ c² = 213355.3283...
⇒ c = 461.9040249... nm
Use sine rule to calculate smallest missing angle (red on attached diagram)
[tex]\sf \implies \dfrac{sin(A)}{150}=\dfrac{sin(20)}{461.9040249}[/tex]
[tex]\sf \implies sin(A)=\dfrac{150sin(20)}{461.9040249}[/tex]
[tex]\sf \implies A=6.376917848... \textdegree[/tex]
Sum of interior angles of a triangle = 180°
⇒ missing interior angle (green) = 180° - 20° - 6.376917848...° = 153.6230822...°
Angles on a straight line sum to 180°
⇒ x° = 180° - 153.6230822...° = 26.376917848...°
The distance between the Ship and Barbados is 461.9040249 nm
Therefore, to calculate the time, divide the distance by the speed:
t = 461.9040249... ÷ 15 = 30.7960166... hours
The lifetime in miles for a certain brand of tire is normally distributed with a mean of 22,000 miles and a standard deviation of 3,100 miles The tire manufacturer wants to offer a money-back guarantee so that no more than 3% of tires will qualify for a refund. What is the minimum number of miles the manufacturer should guarantee that the tires will last?
a. 15,800 miles
b. 16,170 miles
c. 25,007 miles
d. 27,828 miles
Step-by-step explanation:
3% = 0.03
we are looking for the 3rd percentile of Z.
checking the Z-table we find as the entry closest to 0.03 to be 0.0301 at z = -1.8 and 0.8.
so, the 3rd percentile of Z is -1.88
the cutoff number (the number of miles, where max. 3% of the tires will qualify for a refund) is
mean value + Z× standard deviation
22000 + -1.88 × 3100 = 16,172 ≈ 16,170
so, b. is correct
Stuck on this one need some help
Answer:
1
Step-by-step explanation:
8²-15/7²
64-15/49
49/49
1
Hope this helps :)
The governor of state a earns 52,760 more than the governor of state be. If the total of their salaries is 308,865 the salaries of each.
10
What is the sum of the geometric series
6(2)^n n = 1?
A. 15.658
B. 6,138
C. 12.276
D. 756
Answer:
The sum is 12276 .
Step-by-step explanation:
This expression can be written as:Σ10i=1(6×2n)=6×Σ10i=12n
The last expression is a sum of a finite geometrical sequence for which: a1=2,q=2,n=10. This sum can be calculated as:S10=2×1−2101−2=2×210−12−1=2×(210−1)==2×1023=2046So the value of the first expression is: 6×2046=12276
Mark me brainliest!!